1Rzhanov Institute of Semiconductor Physics SB RAS, 630090, 13 Lavrentiev Aven., Novosibirsk, Russia
2Novosibirsk State University, 630090, 6 Pirogov Str., Novosibirsk, Russia
3Novosibirsk State Technical University, 630073, 20 K. Marx Str., Novosibirsk, Russia
Adv. Mater. Lett., 2018, 9 (3), pp 211-215
DOI: 10.5185/amlett.2018.1885
Publication Date (Web): May 16, 2018
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E-mail: eayakimchuk@isp.nsc.ru
The stability of multi-component graphene-based ink solutions for its optimization and alignment with complex requirements of inkjet printing technologies is considered in the present study. Stable compositions of a four-component suspension (graphene, water, ethanol, and ethylene glycol) were analyzed with the use of Hansen solubility parameters and their experimental corrections. Realization of a set of the stable suspension composition showed that the droplet forming conditions at inkjet printing were fulfilled in all cases. From the point of view of printed layer drying and suppression of the coffee ring effect, it was found that the ethylene glycol concentration has to be lower than 20%. Printing by inks, which fit the optimal composition in all respects, has demonstrated good electrical characteristics, namely, the layer resistance of 3 – 15 kΩ/gama for lines with a 20-40 nm thickness.
Inkjet printing, graphene suspension, stability of ink solutions, printed layers properties.
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